Diff Report
Run #519eb7a1537f7: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519eb7f35533b: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem@1

Drupal\Core\Cache\DatabaseBackend::prepareItem@1Run #519eb7a1537f7Run #519eb7f35533bDiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)1,091 1,109 18 1.6%
Incl. Wall Time (microsec) per call 156 158 3 1.6%
Excl. Wall Time (microsec)158 157 -1 -0.6%
Incl. CPU (microsecs)932 984 52 5.6%
Incl. CPU (microsecs) per call 133 141 7 5.6%
Excl. CPU (microsec)148 145 -3 -2.0%
Incl. MemUse (bytes)38,612 38,612 0 0.0%
Incl. MemUse (bytes) per call 5,516 5,516 0 0.0%
Excl. MemUse (bytes)-11,528 -11,528 0 0.0%
Incl. PeakMemUse (bytes)62,648 62,648 0 0.0%
Incl. PeakMemUse (bytes) per call 8,950 8,950 0 0.0%
Excl. PeakMemUse (bytes)640 640 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Cache\DatabaseBackend::prepareItem@1 [View Callgraph Diff]


Function NameCalls DiffCalls
Diff%		Incl. Wall
Diff
(microsec)		IWall
Diff%		Incl. CPU Diff
(microsec)		ICpu
Diff%		Incl.
MemUse
Diff
(bytes)		IMemUse
Diff%		Incl.
PeakMemUse
Diff
(bytes)		IPeakMemUse
Diff%
Current Function
Drupal\Core\Cache\DatabaseBackend::prepareItem@10 N/A% 18 0.6% 52 3.4% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-1 -5.6% -3 -5.8% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 18 100.0% 52 100.0% 0 N/A% 0 N/A%
Child functions
explode0 N/A% 0 0.0% -1 -1.9% 0 N/A% 0 N/A%
unserialize@10 N/A% 67 372.2% 68 130.8% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -48 -266.7% -12 -23.1% 0 N/A% 0 N/A%